Chapter 4.4, Problem 4.14E

Interpretation Introduction

Interpretation: Whether the single Raman band consistent with the trans orientation of the oxygen atoms in structure of ${\mathrm{IO}}_2{\text{F}}_5^{2-}$ ion or not needs to be explained.

Concept introduction: A vibration is said to be Raman active if the symmetry matches for the functions xy, xz, yz, $x^2,y^2\text{or }{z}^2$ or their linear combinations. If any vibration matches with these functions, there must be change in polarizability. They are with other functions which are listed in the character tables.